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   <title> Frequently Asked Questions </title>
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<h1>AviSynth Frequently Asked Questions</h1>

<h2>Contents</h2>
<ol>
  <li><a href="#General_information">General information</a></li>
  <li><span class="mw-headline"><a href="#Loading_clips_into_AviSynth">Loading clips (video, audio and images) into
AviSynth</a></span></li>
  <li><span class="mw-headline"><a href="#Opening_scripts_in_encoder_and_player_applications">Opening scripts in encoder and player applications</a></span></li>
  <li><a href="#Some_common_error_messages">Some common error messages</a></li>
  <li><a href="#Recognizing_and_processing_different_types_of_content">Recognizing and processing different types of content</a></li>
  <li><span class="mw-headline"><a href="#The_color_format_YV12_and_related_processing_and_encoding_issues">The color format YV12 and related processing and
encoding issues</a></span></li>
  <li><span class="mw-headline"><a href="#How_to_use_VirtualDub_plugins_in_AviSynth">How to use VirtualDub's plugins in AviSynth</a></span></li>
</ol>

<a name="General_information"></a>
<h3><span class="mw-headline">General information</span></h3>
<p><a href="faq_general_info.htm">This section</a> contains some general information about AviSynth. It's about its
history, the different versions floating around. It explains how to get it to
work, how to create a script and how to use plugins. It also discusses some
command line utilities and graphical user interfaces which are able to open AviSynth scripts.</p>

<a name="Loading_clips_into_AviSynth"></a>
<h3><span class="mw-headline">Loading clips (video, audio and images) into
AviSynth</span></h3>
<p><a href="faq_loading_clips.htm">This section</a> explains how to import the most common media formats (video,
audio and images) into AviSynth. It explains which internal filters or external
plugins can be used to import them and how this should be done. If this section
doesn't provide enough information to load your media format, you should read
the following document: <a href="advancedtopics/importing_media.htm" title="Importing media">Importing_media</a>.
It discusses many media formats, and gives a systematic way (using multiple
ways) of loading these formats into AviSynth.</p>

<a name="Opening_scripts_in_encoder_and_player_applications"></a>
<h3><span class="mw-headline">Opening scripts in encoder and player applications</span></h3>
<p><a href="faq_frameserving.htm">This section</a> describes frameserving and how to frameserve from and to
AviSynth. It explains how to load AviSynth scripts in supported encoders and
players, and what you can do if they don't support AviSynth scripts.</p>

<a name="Some_common_error_messages"></a>
<h3>Some common error messages</h3>
<p><a href="faq_common_errors.htm">This section</a> describes some common error messages and explains what to do
about them.</p>

<a name="Recognizing_and_processing_different_types_of_content"></a>
<h3>Recognizing and processing different types of content</h3>
<p><a href="faq_different_types_content.htm">This section</a> explains what you should do when the video and audio in your
final encoding is not in sync. It discusses variable framerate video. It
explains <span class="mw-headline">how to recognize and process progressive,
interlaced, telecined, hybrid and blended content.</span></p>

<a name="The_color_format_YV12_and_related_processing_and_encoding_issues"></a>
<h3> <span class="mw-headline">The color format YV12 and related processing and
encoding issues</span></h3>
<p><a href="faq_yv12.htm">This section</a> contains specific information about
the color format YV12 and related processing and encoding issues.</p>

<a name="How_to_use_VirtualDub_plugins_in_AviSynth"></a>
<h3><span class="mw-headline">How to use VirtualDub's plugins in AviSynth</span></h3>
<p><a href="faq_using_virtualdub_plugins.htm">This section</a> explains how to use plugins written
for VirtualDub in AviSynth.</p>
<p>
<kbd>$Date: 2009/09/12 20:57:20 $</kbd>
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